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Ok I'll buck the system. Why would you spend 1k on a stereo that would never sound as good or be as useful as one you could buy yourself. Also remember that the big spa companies build spas not stereos. All the ones I have seen and heard look and sound like they were added on as an afterthought. I'll take the 1k and buy the following. 1. Bose 251 Environmental speakers @299.002. Denon 1705 multichannel home theater receiver @275.003. Mounting brackets and wire @50.004. Sony 200 Disc jukebox @250.005. Niles "outdoor" volume controler 75.006. Couple of cases of cold ones! There's your 1k and you now have a system that can run your home theater system inside and an awesome system inside. Infact you don't have to stick with the Dennon receiver, sony sells several Multi source room recievers for around 300. Then you can listen to the radio inside while playing CD's outside. Those Bose 252's really sound nice when driven by a good amp. I know I have 6 of them outside on my deck and around my hot tub. You could settle for poor sound in a limited installed system or you could get alot more sound and better quality stuff for less. It's your dollar!
One of the best parts of the spa stereo is that the speakers are usually right at ear level, close to you.